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19 ROUNDVILLE LN, ROUND ROCK, TX 78664

ROUND ROCK, 78664 — williamson County

3 bed21,660 sqftBuilt 2015

Property at a Glance

This home is estimated between $3,915,394 and $4,430,489, with a best estimate of $4,267,486. That places the property above the R20IS - Storage Warehouse-e Round Rock median of $2,255,012, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$3,915,394 $4,430,489
Best Estimate
$4,267,486
WCAD Value
$4,487,167
Low Confidence

Based on 5 comparable properties(1 in the same subdivision)

There are 5 comparable properties within range, but few are in R20IS - Storage Warehouse-e Round Rock. The estimated range of $3,915,394 and $4,430,489 should be treated as a rough guide.

Comparable Properties (5)

30 ROUNDVILLE LN, ROUND ROCK, TX 78664
0.00 mi 53% similar Same subdivision
3 bed 2 bath 5,252 sqft Built 1979
Raw Value $1,071,811
Adjusted Value $4,381,297

Adjusted +$3,309,486 for 16,408 sqft more living space. Net adjustment: +$3,309,486.

3 bed 2 bath 2,024 sqft Built 2003
Raw Value $367,107
Adjusted Value $4,267,486

Adjusted +$3,960,572 for 19,636 sqft more living space and -$60,193 for no garage. Net adjustment: +$3,900,379.

3 bed 3,920 sqft Built 1986
Raw Value $397,437
Adjusted Value $3,915,394

Adjusted +$3,578,150 for 17,740 sqft more living space and -$60,193 for no garage. Net adjustment: +$3,517,957.

4 bed 2 bath 3,209 sqft Built 2003
Raw Value $483,818
Adjusted Value $4,145,183

Adjusted +$3,721,558 for 18,451 sqft more living space and -$60,193 for no garage. Net adjustment: +$3,661,365.

3 bed 2 bath 2,668 sqft Built 1994
Raw Value $660,004
Adjusted Value $4,430,489

Adjusted +$3,830,678 for 18,992 sqft more living space and -$60,193 for no garage. Net adjustment: +$3,770,485.

The Neighborhood

This home is valued 99.0% above the R20IS - Storage Warehouse-e Round Rock median of $2,255,012. With 12 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.4% over the past year.

R20IS - Storage Warehouse-e Round Rock

outlier high
12 Properties
$2,255,012 Median Value
-5.4% YoY Change
0% Have Pool
0% Have Garage
This Home
$4,487,167
Median
$2,255,012

This home is +99.0% above the subdivision median.

Tax Analysis

The estimated annual property tax is $80,737 across all districts. With a homestead exemption claimed, that drops to $78,657 — saving $2,080 per year. That's $6,555 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$40,075
Round RockCity0.3720%$16,692
Williamson CountyCounty0.3694%$16,578
Austin Community Collegespecial0.1034%$4,640
Williamson County FM/RdCounty0.0443%$1,989
Upper Brushy Creek WCIDWater0.0170%$763
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$80,737

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $4,267,486 would pay approximately $26,638 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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